Furnace conveyer



'Aug 11, A T KATHNER 1,818,806

- FURNAcs coNvEYEn u Filed March 2, 1928 Patented Aug. 11, 1931 UNiTED STATES ARTHUR' T. KTHNER, OF NEW CUMBERLAND, WEST VIRGINIA.

FURNAGE coNvEYnn Application led March 2,

This inventionrelates broadly to vconveyers for metal lannealing and heat treating furnaces, and more specifically to carrier devicesfor shaft conveyers. j

The primary object of the invention is to provide, Vin association. with al conveyer shaft, an improved form of conveyer disk? and disk-interlocking means.

A further object is to provide a conveyer lo composed of a pluralit hubs which are designe to interengage in such manner that leak-proof joints are formed therebetween. i In describin the invention in detail, reference-is herein hadto the accompanying drawings, in which- Figure 1 is a view partly in section, illustrating a conveyer embodying my invention;

- Figure 2 is an enlarged side elevationA of the conveyer disk with its hub; I Figure 3 is a section on line 3-3,F1g. 2;* igure 4 is an end elevation of a spacer;

an Figure 5 is a section on `line 5--5, Fig. 4. Referring to said drawings, 1 designates a conveyer shaft, preferably of tubular form, having a uniform diameter throughout its length and which is designed to have itsl opposite ends directed outwardly through the side walls ofthe furnace (not shown). Keyed upon said vshaft adjacent to its opposite ends at points located interiorly with respect to the furnace walls are collars 2 which have mounted therebetween a plurality of conveyer disks 3. Each of said disks has an integral sleeve-like hub 4 which hasv an internal diameterv which materially exceeds the diameter of the shaft 1, and a plurality of integral radially directed arms 5 carried by said hub adjacent to each of its ends seat upon the shaft and maintain said h ub in concentric relation .to said shaft.

5o 8 which substantially corresponds in form of disks having Each hub has its opposite ends of male A 192s.J serial No. 258,461.

with the hubs 4 except that-the encircling disk '3 is omitted therefrom. Said spacers,

which may have any desired length, are designed for employment to space the disk hubs away from the end portionsv cfr-the shaft' and, when desired, to space the disks apart a suitably `greater distance thanwhen such hubs. are arranged in interengaged relaion. e

Each of the male ends 6 of the hubs carries exteriorly thereof one or more relatively spaced lugs 9 adapted to be. received within correspondingly shaped and spaced recesses 10 provided therefor interiorly of the female ends'of adjacent hubs. As herein shown at 11, the lugs 9 formed on the male ends 6 have their outerA faces inclined substantially to correspond vwith the exterior taper or inclination of said ends.

As indicated, each spacer 8 embodies invtegral radial arms 53a male end 6 anda female end 7 and the female end being provided with recesses 10.-V

Following mounting of the disk hubs 6 and the spacers 8 on the shaft 1, the interiors thereof, or the spaces between such hubs or' spacers and the shaftl are packed with asbestos fiber or other suitable heat resisting material or composition 12 which serves to insulate the shaft 1 from the high temperatures carried within the furnace.

It will be noted that the kjoints between the hubs and spacers constructed as hereinbefore described are, in effect, of ship-lap type throughout and that, consequently, loss of the heat resisting material or composition through leakage or sifting at such joints is efectually prevented.

What is claimed isl1. In a' conveyer for furnaces, a shaft, a plurality of conveyer disks carried by said shaft, each disk having a sleeve-like hub with its internal diameter materially exceeding the diameter of said shaft, said hubs having male and female ends for interfitting with the vadjacent non-corresponding ends of adjacent hubs, each of said female ends being provided with spaced internal recesses and each of said male ends having corresponding exterior lugs fitted within the rein the diameter of said shaft, eac

cesses of the next adjacent hub, each hub having a plurality of relatively spaced radial arms seated in embracing relation to said shaft.A

2. In a conveyer for furnaces, a shaft, a plurality of conveyer disks carried by said shaft, each disk having a sleeve-like hub with its internal diameter materially exceedof said hu s having a plurality of radial arms seated upon said shaft whereby it is maintained in concentric relation to the latter, each hub having male and female ends whereby are formed joints of ship-lap type with the ends of adjacent hubs, the female ends being provided interiorly thereof with relatively spaced recesses and the male ends carrying exteriorly thereof integral similarly space lugs fitted within the recesses of the next adjacent hub, and a packing of heat insulating material between said hubs and the shaft.

3. In a conveyer for furnaces, a shaft, a pluralityv of conveyer disks carried by said shaft, each disk having a sleeve-like hub with its internal diameter materially exceeding the diameter of said shaft, each of said hubs having a plurality of radial arms seated upon said shaft whereby it is maintained in concentric relation to the latter, each hub having male and female ends whereby are formed joints of ship-lap type with the ends of adjacent hubs, the female ends being provided interiorly thereof with relatively spaced recesses and the male ends carrying exteriorly thereof integral similarly spaced lugs fitted within the recesses of the next adjacent hub, a packing of heat insulating material between said hubs and the shaft,and means carried in fixed relation to the shaft adjacent to its opposite end portions and interengaged with the endmost hubs whereby the various interengaged hubs are held against rotation relative to said shaft.

4. A conveyer element comprising a disk having a sleeve-like hub, integral radial arms carried interiorl of said hub, said hub having a male end an a female end adapted to interit with the non-corresponding ends of similarly shaped hubs, the female end having therein internal relatively spaced recesses and the male end having exteriorly thereof integral spaced lugs for fitting withln `ghe recess of an adjacent similarly shaped 5. In a furnace conveyer, a shaft, a conveyer element having a sleeve-likehub recelved over said shaft, arms carried by and extending radially inwardl of said hub and engaging the shaft, lsaid hub having a male and a female end, the male end having an external lug and the female end having an internal recess to receive the lu of an adjacent hub, said hub having an internal diameter greater than the external diameter of such shaft, and a heat-resisting packing between the shaft and said hub.

6. In a furnace conveyer, a shaft, a conveyer elementphaving a sleeve-like hub of an internal diameter greater than the diameter of the shaft, means carried by the hub and engaging the shaft to maintain the hub in spaced concentric relation to the shaft, said hub having a female end and a male end,

the latter adapted to be received within the female end of an adjacent hub, complementary means on the male and female ends for interengagement so as to hold adjacent hubs against relative rotation, and a packing of heat insulating material between the shaft and the hub.

7. In a metallurgical furnace, a shaft, a plurality of work supporting disks mounted.

on sald shaft, each of said disks Ibeing provided with a sleeve surrounding said shaft and having inwardly extending lugsl for spacing the sleeve from said shaft, each of said sleeves being formed with an enlarged portion at one end receiving an end of the sleeve of the next adjacent sleeve, -and insulating material secured between each sleeve and said shaft.

8. In a metallurgical furnace, a shaft, a plurality of work-supporting disks mounted on said shaft, each of said disks being provided with a sleeve surrounding said shaft and having inwardly extending lugs at one end for spacing the sleeve from the shaft, each sleeve 'having its other end formed with an enlarged portion receiving an end of the next adjacent sleeve, and insulating material secured Vbetween each sleeve and said shaft.

9. In a metallurgical furnace, a shaft, a plurality of work-sup 'orting disks mounted on said shaft, each o said disks being provided with a sleeve extending laterally on both sides thereof and provided at one end with inwardly extending lugs engaging said shaft, said sleeve having its other end formed with an enlarged portion receiving an end of the next adjacent sleeve, and insulating material secured between each sleeve and said shaft.

10. A carrier wheel device comprising a shaft, a plurality of wheels associated therewith, and a sleeve surrounding said shaft j but spaced therefrom and co-operating with 12. A carrier wheel device for annealing` furnaces comprising a shaft, a plurality of jections thereon surrounding the shaft between the wheels, said sleeves being spaced from the shaft and means for connecting the end wheels to the shaft.

A.14. A carrier-wheel device comprising a shaft, a plurality of wheels provided with integral hubs 'having recesses therein as. sociated with the shaft, a plurality of sleeves having projections thereon surround- -ing the shaft between the wheels, said sleeves being spaced from the shaft and end sleevesJ for connectin the end.wheels to the shaft.

15. A carrier wheel device for furnaces comprising a shaft, a plurality of l wheels provided with integral hubs having recesses therein associated with the shaft, a plurality of sleeves having projections thereon sur-' rounding the shaft between the wheels, and end sleeves connected outside of the furnace to the shaft and provided at their opposite ends with pro'ections cooperating with recesses in :the hubs for connecting the end wheels' to the shaft.

16. In a conveyer for furnaces, the combilnation with a rotaryshaft, of a plurality of elements carried by said shaft, each of said elements having an internal-diameter materially exceeding the outside diameter of said shaft, means dis osed inwardly of i the elements for maintalnin the elements in spaced relationto the sha t, each of said elements being provided with rmale andfemalejmeans for mterengaging with the nekt adjacent elements for rotary movement thereo 17. In a conveyer for furnaces the compreventing relative carried byl said shaft, and having an internal diameter materially exceeding the diameter of said shaft, certain o`f the elements havin article carrier means of greater outsideV ameter than the element. and having means seatingfon the shaft whereby theelement is maintained in .spaced relation to the shaft, and means including interengagl ing male and female portions on the elements provided Awith co-operating projections and recesses for preventing relative rotation of the elements.

18. In a conveyer roll for a furnace for heat-treating metallic sheets, the combina-V tion of a central shaft,.a series of disks nounted thereon, and tubular shields of heat resisting metal engaging said disks, each shield surrounding said shaft and being spaced away there rom so as to. form an air chamber.

19. In a conveyer roll for a furnace for heat-treating metallic sheets, the combination of a central shaft, a series of' disks Vmounted thereon, and tubular shields of heat resisting metal enga 'ng said disks,

each shield surrounding sai shaft and being spaced away therefrom so as to form an air chamber, said disks havin lateral anges telesco ing with said shiel s.

20. n a conveyer roll for a furnace for heat-treating metallic. sheets, the combination of a ,central shaft, a series of disks mounted thereon, and tubular shields of heat said disks, each resisting metal engagilg shield surroundin sai `shaft and being spaced away there romso as to form an air chamber, said disks having lateral flanges telescoping with said shields and being pen' forated within said flanfes.'

In testimony whereo I aiiix my signature.

ARTHUR T. KATHN ER.

bination with a rotary shaft, of elements los' 

